A powerful boost of hydration, vitality & well-being that immediately leaves the face looking radiant & plumps the skin, making it instantly smoother. When applied in the evening & left to work until the morning, COLLISTAR S.O.S Moisturizing Hydro-Mask has an intense moisturising effect that exploits at the most the time spent sleeping. It is also perfect as a flash 10-minute treatment when the face looks tired, stressed & dehydrated. Suitable for all skin types.